private void LoadModelData(Model model)
{
GL.BindVertexArray(_vao);
vertexBuffer.Bind();
var name = model.Path;
var meshes = model.Meshes;
_bufferDataPointers.Add(name, new List <MeshDataPointer>());
foreach (var mesh in meshes)
{
var baseIndex = _vertices.Count;
_vertices.AddRange(mesh.Vertices);
_indices.AddRange(mesh.Indices);
_bufferDataPointers[name].Add(new MeshDataPointer(baseIndex, mesh.Indices.Count, mesh.Material));
}
vertexBuffer.UpdateData(0, _vertices.Count * Vertex.Stride, _vertices.ToArray());
//GL.BufferSubData(BufferTarget.ArrayBuffer, _lightDataPtr, _vertices.Count * Vertex.Stride, _vertices.ToArray());
GL.BufferData(BufferTarget.ElementArrayBuffer, _indices.Count * sizeof(uint), _indices.ToArray(),
BufferUsageHint.StaticDraw);
_logger.Info($"Loaded {model.Path} into VBO");
}
public void RenderText(Shader shader, string text, float x, float y, float scale, Vector3 color)
{
shader.Use();
shader.SetVec3("textColor", color);
shader.SetMat4("projection", projection);
GL.BindVertexArray(VAO);
GL.ActiveTexture(TextureUnit.Texture0);
foreach (char c in text)
{
if (!characters.ContainsKey(c))
{
LoadCharacter(c);
}
var character = characters[c];
var xPos = x + character.Bearing.X * scale;
var yPos = y - (character.Size.Y - character.Bearing.Y) * scale;
var w = character.Size.X * scale;
var h = character.Size.Y * scale;
var vertices = new[]
{
xPos, yPos + h, 0.0f, 0.0f,
xPos, yPos, 0.0f, 1.0f,
xPos + w, yPos, 1.0f, 1.0f,
xPos, yPos + h, 0.0f, 0.0f,
xPos + w, yPos, 1.0f, 1.0f,
xPos + w, yPos + h, 1.0f, 0.0f
};
GL.BindTexture(TextureTarget.Texture2D, character.TextureId);
vertexArrayBuffer.UpdateData(0, 6 * 4 * sizeof(float), vertices);
vertexArrayBuffer.Bind();
GL.DrawArrays(PrimitiveType.Triangles, 0, 6);
vertexArrayBuffer.Unbind();
x += (character.Advance >> 6) * scale;
}
GL.BindVertexArray(0);
GL.BindTexture(TextureTarget.Texture2D, 0);
}
public void RenderShape(Shader shader, UIShape shape)
{
if (!_dataPointers.ContainsKey(shape))
{
_renderableShapes.Add(shape);
LoadUIObjectMeshData();
}
GL.Disable(EnableCap.DepthTest);
GL.BindVertexArray(VAO);
shader.Use();
shader.SetMat4("projection", projection);
uiVertexBuffer.Bind();
shader.SetVec3("color", new Vector3(shape.Color.R, shape.Color.G, shape.Color.B));
if (_dataPointers.ContainsKey(shape))
{
var pointer = _dataPointers[shape];
GL.DrawArrays(PrimitiveType.Triangles, pointer.Start, pointer.Count);
}
uiVertexBuffer.Unbind();
GL.BindVertexArray(0);
GL.Enable(EnableCap.DepthTest);
}